1231123 has 8 divisors (see below), whose sum is σ = 1315440. Its totient is φ = 1148160.

The previous prime is 1231099. The next prime is 1231127. The reversal of 1231123 is 3211321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231123 - 2⁵ = 1231091 is a prime.

It is a super-2 number, since 2×1231123² = 3031327682258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2103 + ... + 2623.

It is an arithmetic number, because the mean of its divisors is an integer number (164430).

2^1231123 is an apocalyptic number.

1231123 is a deficient number, since it is larger than the sum of its proper divisors (84317).

1231123 is a wasteful number, since it uses less digits than its factorization.

1231123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677.

The product of its digits is 36, while the sum is 13.

The square root of 1231123 is about 1109.5598226324. The cubic root of 1231123 is about 107.1767248700.

Adding to 1231123 its reverse (3211321), we get a palindrome (4442444).

The spelling of 1231123 in words is "one million, two hundred thirty-one thousand, one hundred twenty-three".